5000", Steel, OD 1 1/8" The addition of a keyway allows for use in positive drive applications as a shaft collar or for extra torque capacity when used as a rigid coupling.
Are you hesitant about the boot's grip.Having a lace-up design on this outdoor boot is fantastic, because it allows you to adjust the fit. Outback GORE-TEX Waterproof Hiker Boot,105WI Don't be, the Outback rubber outsole provides fantastic traction and allows your footing to be steady when you're walking on rugged terrain. GORE-TEX fabric has been added into the design of this footwear; having it ensures that these 9" outdoor boots will remain durably waterproof, breathable and windproof.